OMG these are sooooooo good. We tried with lemon cake mix. I had to really fight to stop at just two! Delicious! COOL WHIP COOKIES- EASIEST COOKIE EVER! 1 box cake mix (any flavor- chocolate, red velvet, lemon, etc.), 1 tub Cool Whip (8 oz), 1 egg. Mix ingredients. Drop spoonfuls into powdered sugar to coat. Bake at 350 for 12 mins. Cool before removing.